I have a question about how one would determine the pKa of an acid-base indicator such as bromothymol blue.
I know that spectrophotometric analysis is one option, but is it possible to perform an acid-base titration to find the pKa (7.1)? How would one set up this experiment?
I was thinking I would use a pH meter/titrant curve and treat the indicator like a weak base, but what titrant would I use? Would I use a strong acid like HCl?